stealc | c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676

General

Target

c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe
Size

5.0MB
MD5

de1d6ba5a3d41a8fa2d97694efcc0a5d
SHA1

234a176f9f778db7a8639f7450289d426421e324
SHA256

c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676
SHA512

c4bfc293f58fdbaaf081ba91f2303d7ad7505faecd49200187f1ab94f9c79b6d95a570cb673fd97762919d622e2def3dd513aa71576e00b2b898362503d1d502
SSDEEP

49152:68cvcusKwUPK4N5MQ+2+e9jbb5gyczD+iZ:63vcusKwUPK4N5MQ+1eJH5gbzqi

Score

10^/10

stealc stok discovery evasion stealer

Malware Config

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes

url_path
/c4becf79229cb002.php

Signatures

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2644	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2556	2644	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2644	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe
2644	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2556	2644	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe	32
PID 2644 wrote to memory of 2556	2644	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe	32
PID 2644 wrote to memory of 2556	2644	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe	32
PID 2644 wrote to memory of 2556	2644	c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe	32

C:\Users\Admin\AppData\Local\Temp\c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe
"C:\Users\Admin\AppData\Local\Temp\c7107e5b4a7a6a36e7d841c528056fc8748e4350ec6b3824be7b7b45e3778676.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2644 -s 928
  2⤵
  - Program crash
  PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2644-0-0x00000000001E0000-0x00000000006DF000-memory.dmp

Filesize
5.0MB

Download
memory/2644-1-0x0000000077C00000-0x0000000077C02000-memory.dmp

Filesize
8KB

Download
memory/2644-3-0x00000000001E0000-0x00000000006DF000-memory.dmp

Filesize
5.0MB

Download
memory/2644-2-0x00000000001E1000-0x000000000042A000-memory.dmp

Filesize
2.3MB

Download
memory/2644-4-0x00000000001E0000-0x00000000006DF000-memory.dmp

Filesize
5.0MB

Download
memory/2644-5-0x00000000001E1000-0x000000000042A000-memory.dmp

Filesize
2.3MB

Download
memory/2644-6-0x00000000001E0000-0x00000000006DF000-memory.dmp

Filesize
5.0MB

Download
memory/2644-7-0x00000000001E0000-0x00000000006DF000-memory.dmp

Filesize
5.0MB

Download
memory/2644-8-0x00000000001E0000-0x00000000006DF000-memory.dmp

Filesize
5.0MB

Download
memory/2644-9-0x00000000001E0000-0x00000000006DF000-memory.dmp

Filesize
5.0MB

Download
memory/2644-10-0x00000000001E0000-0x00000000006DF000-memory.dmp

Filesize
5.0MB

Download
memory/2644-11-0x00000000001E0000-0x00000000006DF000-memory.dmp

Filesize
5.0MB

Download
memory/2644-12-0x00000000001E0000-0x00000000006DF000-memory.dmp

Filesize
5.0MB

Download
memory/2644-13-0x00000000001E1000-0x000000000042A000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads